fd: add page (#1563)

pages/common/fd.md

@@ -0,0 +1,23 @@
+# fd
+
+> A simple, fast and user-friendly alternative to find.
+
+- Find files under current directory that match a pattern:
+
+`fd {{pattern}}`
+
+- Find files that begin with foo:
+
+`fd {{'^foo'}}`
+
+- Find files with a specific extension:
+
+`fd --extension {{.ext}} {{pattern}}`
+
+- Find files under a specific directory:
+
+`fd {{pattern}} {{path/to/dir}}`
+
+- Include ignored and hidden files in search:
+
+`fd --hidden --no-ignore {{pattern}}`